Deep submarine ravine formed from the subduction of an oceanic plate under another tectonic plate. What geographic features make up the continental margin. Ocean floor features national oceanic and atmospheric. Some of their measurements are shown in the graph below. Sea floor spreading worksheet westerville city school. The heated water reacts with the rock, which removes o2, increases acidity, dissolves metals, and incorporates hs2, h, co2 and ch4.
On the grid, draw a line to show the relative age of the bedrock samples between these locations. Our online geomorphology trivia quizzes can be adapted to suit your requirements for taking some of the top geomorphology quizzes. Students test how salinity, wind, and temperature affect ocean currents. Aa bb cc dd the most recently formed bedrock is found at location 4base your answer to the following question on the map of the midatlantic ridge shown below. Introduction to the worlds oceans pages 52 67 bathymetry of the seafloor 1. Molten rock pushes up from the asthenosphere and pushes the plates apart at the midocean ridge. A large point or extension of the land jutting into a body of water. A chain of underwater mountains along which seafloor spreading occurs is a.
Continental shelf starting from land, a trip across an ocean basin along the seafloor would begin with crossing the continental shelf. The chapter testrequires students to use process skills and understand content. Lesson 2 into the deep lesson at a glance students pose questions about the ocean fl oor and make a prediction about what they think the ocean fl oor might look like and the kinds of earth materials that make up the ocean fl oor. Seasat mapped seafloor features indirectly by measuring sea height. The lithosphere includes both the crust and the solid part of the. Seafloor spreading enrichment activity for lessons 62 and 63 skills. Together they contain the overwhelming majority of all water on the planet and have an average depth of almost 4 km about 2. The name of the supercontinent that was all modern continents joined together, fossils of the same organism found on different continents separated by ocean is this type of evidence. A huge plateau that lies at the edge of a continent.
This product includes cornell notes, an activity, a presentation on the lesson, and a mini quiz presentation on the ocean floor features. Plate tectonics has been rigorously tested from numerous sub disciplines in geology. Name the feature of the ocean floor that is labeled c. The theory of plate tectonics provides an example of the evolution of scientific thought. Search help in finding ocean floor features online quiz. Seafloor spreading is the creation of new seafloor or new oceanic crust 5. Since the development of the theory, geologists have had to reexamine almost every aspect of. Seafloor spreading worksheet pdf answer key pearson education. This lesson is part of my earths waters complete bundle.
Quiz questions are listed in the slide notes section of the powerpoint. The contraction theory implied that earths features formed through the process of. This unit in the form of pdf file and covers all about on ocean floor and ocean water characteristics with neat sketches along with vocabulary. The theory has caused a revolution in the way we think about the earth. Blue habitats home to the global seafloor geomorphic. The oldest sections should be the sections on both sides furthest from the middle 4. A model of seafloor spreading troup county school district. A comprehensive database of geomorphology quizzes online, test your knowledge with geomorphology quiz questions. The candidates will find here important questions related to climatology, oceanography which will help in ias prelims exam and state pcs exams. This means that if any dimension of a seafloor feature is a mile or bigger, we can see it in this map. The best way to use a practice test is as a diagnostic tool to help guide your study. Common features of the seafloor and coastline abyssal plain. If youre behind a web filter, please make sure that the domains. Name the feature of the ocean floor that is labeled a.
Some points youll be tested on include tectonic plates and how sea floor spreading occurs. These questions pertain to topographic maps, bathymetric maps, ocean floor features, and importance of ocean covering so much of the earth. Moving forward in the presentation, show students the labeled pictures of different seafloor features. Continental drift, sea floor spreading and plate tectonics. There is a printable worksheet available for download here so you can take the quiz with pen and paper. Why are undersea features mountains, canyons larger and more dramatic and also slower changing than those on land. This gas and mineral rich water is ejected out onto the seafloor. Students studying geology in grade 6 will investigate how earths surface is formed, describe processes that change earth, and explain the physical effects of these processes. The vertical lines in the diagram represent faults and fractures within the ocean floor bedrock.
New seafloor moves away from the ridge, cools, becomes denser and sinks. A broad, sloping deposit of sediment at the mouth of a river or at the foot of a submarine canyon. This marks the beginning of where the continent ends and the ocean floor begins. A combination of the seafloor spreading theory and the continental drift theory. The strips of paper represent oceanic crust or seafloor. Learn vocabulary, terms, and more with flashcards, games, and other study tools. Features of the ocean floor a worksheet that depicts the features of the ocean floor.
Its discovery provided a mechanism for continental drift that alfred wegener could not explain. The narrow, tipend of a cape, headland, peninsula, or other land feature jutting into a body of water. Lets make waves activity students simulate ocean waves in a pan. Origins of plate tectonic theory earth science quiz. Lithosphere with new oceanic crust is formed at mor, then spreads laterally as if on conveyor belt. View test prep seafloor sediments quiz spring 2015 key from ocan 1 at city college of san francisco. Ocean floor features printable lesson oceanography earth. Scientists have measured the ages of these rock samples. Oceans sort students cut of the ocean vocabulary words and sort the matches. The first two sections of the chapter reveal the basic observations that were used to make. Line xy connects locations in north america and africa.
Points a through d are locations on the ocean floor. If things look unfamiliar, or you have questions about them, feel free to ask. Each group will write their answer on the white board and hold it up for the teacher to see. They learn about the continental slope, continental rise, abyssal plain, mid ocean ridge, trench and much more. The theory encompasses the concepts of continental drift, developed by alfred wegener, and seafloor spreading. Navigators of ships and submarines are interested in. Search help in finding seafloor features online quiz version. The evidence that rocks closer to mid ocean ridges are younger than rocks farther away supports the theory of. Search help in finding ocean floor features online quiz version. In the first lab session, you focused on sea floor features located in the offshore. Ocean basin, any of several vast submarine regions that collectively cover nearly threequarters of earths surface. This lesson is part of my earths waters complete unit bundle.
Quiz explaining seafloor spreading and plate tectonics theories. If youre seeing this message, it means were having trouble loading external resources on our website. This is an online quiz called ocean floor features. Conservation international, gridarendal and geoscience australia recently collaborated to produce a map of the global distribution of seafloor geomorphic features. Lithospheric plate with oceanic crust is dragged down at trenches. G4 u8 l2 lesson 2 into the deep national oceanic and. Some features, like canyons and seamounts, might look familiar, while others, such as hydrothermal vents and methane seeps, are unique to the deep. Bedrock samples were taken at the midocean ridge and points b and c. These digital science activities cover ocean floor features, including the continental margin, continental slope, continental rise, and seafloor features. Sep 19, 2018 modelling the ocean floor lab seafloor spreading questions sea floor spreading homework ocean floor flashcards quizlet. Although all questions involve memory to some degree, you will find that your students will need to discover relationships among facts and concepts in some questions, and to use higher levels of critical thinking to apply concepts in other questions. Sea floor spreading worksheet answer key pearson education. Together these concepts would become the theory of plate tectonics.
The continental rise is a large, gentle slope at the base of the continental slope. As a class, read the short paragraph on the student worksheet. Lesson 3 seafloor profiling lesson at a glance in this lesson, students will model a seafl oor with shoeboxes and wood blocks, map the seafl oor using bamboo skewers, plot the data as a line graph, thereby making a profi le of their seafl oor, and identify geological features on the profi le. Features rising up from the ocean floor include seamounts, volcanic islands and the midoceanic ridges and rises. For each geologic feature, write the letters in the correct location on the map above.
Points a, b, and c represent locations on earths crust. Its radar sent out pulses of radio waves that reflected off the ocean surface, giving. Bank a navigable shallow area of the ocean caused either by elevation of the seafloor or by submergance of a landmass. Is the idea that the continents are slowly drifting further away from each other. This product comes with 24 presentation slides and 5 pages. The ocean floor is literally the floor of the ocean. You will recall from a previous chapter that there are three. Jul 4, 2015 this is a cut and paste parts of the ocean floor worksheet.
A broad, sloping deposit of sediments at the mouth of a river or at the foot of a submarine canyon or a river canyon. Knowledge on the distribution of blue habitats is an important input into ocean management, marine spatial planning and biodiversity conservation. Seasat, the first satellite dedicated to oceanography, was launched in 1978. What is occurring inside earths mantle that causes seafloor spreading and ultimately drives the movement of the tectonic plates. Take the test with a time limit and grade it the answer key is on the last page. It is an underwater mountain range that forms when magma pushes up on the crust at a divergent boundary. As the ocean seafloor spreads, the newly formed floor will adapt a specific magnetic signature according to the earths magnetic pole at that time. Plate tectonics describes the distribution and motion of the plates. The sediments that make up abyssal plains are carried there by turbidity currents or are deposited as suspended sediment settles out.
Most geologists accept these tests as verification of plate tectonics. A group of islands formed by the same geological process such as a hot spot. Molten rock pushes sideways in both directions as it rises, moving the mantle with it. In this lesson, you will learn about this important. Continental drift, sea floor spreading and plate tectonics plate tectonics is a theory developed in the late 1960s, to explain how the outer layers of the earth move and deform. Plate tectonics, and continental drift proprofs quiz. It allowed researchers to detect and map seafloor features around areas rarely visited by ships, like antarctica.
The landscape of the ocean floor is much like what you see on land, just way more dramatic and without all that life. Multiple choice questions for shorelines chapter 14. Name the feature of the ocean floor that is labeled b. The questions in this online quiz will test you on some facts about sea floor spreading. What data did wegener use to prove that the continents had once been joined together. Students are expected to know about the makeup of the earths layers, what the. This way seafloor spreading explains volcanism or volcanic activity along the ridge, the formation of the ridge, the formation of the seafloor, convection below the oceanic crust, spreading of the seafloor, the trenches and the respective age of the seafloor from the ridge till the trench. The letters for the east pacific rise have already been drawn on the map for you. A feature of the ocean floor that is between the continental slope and the abyssal plain, typically covered in sediment. Beginning with early evidence of continental drift such as the fit of landmasses and matching fossil records bridging continents, to understanding the features of the seafloor, and discovering the symmetric pattern of seafloor magnetic stripes and ages, students will piece together the evidence pointing from continental drift to seafloor. B to convince the reader that snakes are dangerous c to provide an explanation of the photo d to inform the reader about the history of snakes.
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